I've been hearing so much about BFL being a scam, Cointerra not meeting their timelines for product push-out, KNC being the major game in town...and then other names pop up, like ASICMiner, HashFast, Black Arrow Software...

As someone who's looking to get into dedicated ASIC rigs, because consumer hardware isn't paying the bills anymore, how do you weed out the chaff and figure out who're the major players? get the best ROI?

Looking at the Bitcoin Profit Calculator, even if the difficulty is double what it is currently, the heavy ASICS (500GH/s and up) are still profitable enough. So why the hate for the heavy miners, and where should one look to get the best ASIC? Black Arrow's Prospero X-3? KNC's Jupiter? Or one of the newer players?